Abrasive wear of transparent polymer coatings: Considered in terms of morphology and surface modification of nanoparticles

2013 ◽  
Vol 88 ◽  
pp. 151-157 ◽  
Author(s):  
Hui Zhang ◽  
Hui Zhang ◽  
Ling-yun Zhou ◽  
Christian Eger ◽  
Zhong Zhang
2019 ◽  
Vol 16 (32) ◽  
pp. 338-344
Author(s):  
Nikolay A. BULYCHEV ◽  
Lev N. RABINSKIY

The influence of the ultrasonic treatment of block copolymer solution on its solid-liquid interface behavior was investigated in detail. The surface modification of titanium dioxide nanoparticles in aqueous dispersions of specially tailor-made periodic acrylic acid/isobutylene copolymer by ultrasonic treatment was studied in order to get new approaches for the creation of hybrid composite materials or polymer coatings. The pigment surface modification by the above copolymer was comparatively investigated regarding conventional adsorption as contrasted to an ultrasonic treatment assisted procedure. The course and efficiency of the polymer adsorption onto the pigment surface were quantified by electrokinetic sonic amplitude measurements. The higher efficiency of the pigment surface coating by the copolymer as achieved by ultrasonic treatment in comparison to conventional adsorption is a consequence of ultrasonically induced pigment surface activation. Two perspective avenues of the utilization of the discovered effects for creation of organic-inorganic composite materials are anticipated: the nanoparticles could first be treated by ultrasound in the presence of polymers and so create a surface modifying coating and the second option is an entrainment of the nanoparticles into the monomer matrix which can be polymerized afterward yielding a polymer with immobilized nanoparticles.


Surfaces ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 349-371 ◽  
Author(s):  
Muzammil Iqbal ◽  
Duy Khoe Dinh ◽  
Qasim Abbas ◽  
Muhammad Imran ◽  
Harse Sattar ◽  
...  

Inspired by nature, tunable wettability has attracted a lot of attention in both academia and industry. Various methods of polymer surface tailoring have been studied to control the changes in wetting behavior. Polymers with a precisely controlled wetting behavior in a specific environment are blessed with a wealth of opportunities and potential applications exploitable in biomaterial engineering. Controlled wetting behavior can be obtained by combining surface chemistry and morphology. Plasma assisted polymer surface modification technique has played a significant part to control surface chemistry and morphology, thus improving the surface wetting properties of polymers in many applications. This review focuses on plasma polymerization and investigations regarding surface chemistry, surface wettability and coating kinetics, as well as coating stability. We begin with a brief overview of plasma polymerization; this includes growth mechanisms of plasma polymerization and influence of plasma parameters. Next, surface wettability and theoretical background structures and chemistry of superhydrophobic and superhydrophilic surfaces are discussed. In this review, a summary is made of recent work on tunable wettability by tailoring surface chemistry with physical appearance (i.e. substrate texture). The formation of smart polymer coatings, which adjust their surface wettability according to outside environment, including, pH, light, electric field and temperature, is also discussed. Finally, the applications of tunable wettability and pH responsiveness of polymer coatings in real life are addressed. This review should be of interest to plasma surface science communality particularly focused controlled wettability of smart polymer surfaces.


2006 ◽  
Vol 128 (1) ◽  
pp. 374-380 ◽  
Author(s):  
Hsien-Yeh Chen ◽  
Yaseen Elkasabi ◽  
Joerg Lahann

2015 ◽  
Vol 6 (13) ◽  
pp. 2504-2511 ◽  
Author(s):  
Solomon Pradhan Le-Masurier ◽  
Hien Thi Thu Duong ◽  
Cyrille Boyer ◽  
Anthony Michael Granville

Polymer coatings on silica cores as well as fluorescent protein binding and fluorescent lifetime analysis.


2009 ◽  
Vol 3 (3) ◽  
pp. 209-212
Author(s):  
Nikolay Bulychev ◽  
◽  
Frederik Wurst ◽  
Viktor Fomin ◽  
Thadeus Schauer ◽  
...  

In this paper the results of recent studies on the application of lower critical solution temperature (LCST) phenomena of polymer solutions to the surface modification of flat and spherical substrates are reported. It has been found that controlled polymer deposition can be achieved at temperatures exceeding LCST. The obtained polymer coating exhibits a peculiar surface morphology and, if particles are introduced, can be highly effective in pigment dispersions stabilizing. It has been established that the temperature induced polymer deposition can be carried out as the finely dispersed component precipitation on the substrate surface that goes along with the polymer deposition at temperatures exceeding LCST, which in its turn allows to modify the pigments surface when finely dispersed additives are incorporated into the surface modifying coating.


2020 ◽  
Vol 51 (5) ◽  
pp. 613-623 ◽  
Author(s):  
J. Szewczenko ◽  
W. Kajzer ◽  
A. Kajzer ◽  
M. Basiaga ◽  
M. Kaczmarek ◽  
...  

2017 ◽  
Vol 4 (6) ◽  
pp. 1041-1053 ◽  
Author(s):  
C. Resetco ◽  
B. Hendriks ◽  
N. Badi ◽  
F. Du Prez

Thiol–ene chemistry is a powerful tool for the sustainable development of functional coatings and surfaces with a variety of building blocks. This review highlights the advantages of thiol–ene chemistry for the development of UV-cured, bio-based, optical and speciality coatings and for surface modification.


2016 ◽  
Vol 23 (03) ◽  
pp. 1650007 ◽  
Author(s):  
MARTA PACZKOWSKA ◽  
JAROSŁAW SELECH ◽  
ADAM PIASECKI

The aim of this study was to investigate the effect of the surface condition of the coulters of a Poznaniak mechanical seeder working in a sand medium on their abrasive wear resistance. Two types of coulter flap surface treatments were performed. The first treatment method was flame spraying, performed with the use of Eutalloy 10112 powder and other method was laser surface modification consisting in remelting a piece of the coulter flap tip by means of TRUMPF’s CO2 molecular laser. The study involved the use of a purpose-built laboratory test stand dedicated to testing wear in a sandy medium. The study revealed that surface treatment changes surface microstructure and thus improves its hardness by [Formula: see text] to 3 times, which translates into two- to six-fold improvement in wear resistance per hectare of cultivated field. Laser surface modification is more economical than thermal spraying and that the coulter flap surface area modified by thermal spraying was much greater than in the case of laser remelting, and finally that the average wear measured as a weight loss of tested coulters was comparable, one can conclude that in the analyzed context laser surface modification will probably prove more efficient than flame spraying. The study showed that there exist ready-to-use technologies for improving operational performance and delaying terminal wear.


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